Re: [opensuse-virtual] XEN on a 13.1 system
Charles Arnold wrote:
On 1/20/2014 at 07:29 PM, in message <52DDDBA2.5000908@suse.com>, Jim Fehlig
<jfehlig@suse.com> wrote:
Hans Witvliet wrote:
Yes, i forgotten that xm/xend is depreceated. Heard that a couple of times at several fosdems from Ian, and when you mention "xm" at the xen-lists you are considered a relic from a distant past....
How ever: When you do a fresh instalation of the xen-stuff in 13.1, and you try to create a VM like one is used to do in previous versions, i still got a warning that i had to check because "xend was not running"
Charles, is there a check in {vm,virt}-install for xend running? I vaguely recall something along those lines, but suppose it was fixed long ago.
Yes. vm-install does check for a running xend. This is how it knows whether to use 'xm' to start VMs or if xend is not running it uses a libvirt connection to start VMs. The only time vm-install uses 'xl' for starting VMs is if xend is not running and it fails to connect to libvirt. Failure to connect could mean libvirtd was not running or some other error occurred when connecting to libvirtd.
For virt-install, it only uses libvirt for starting VMs. It will try to default to a xen connection if '/var/lib/xend' and '/proc/xen' exist otherwise it
It shouldn't look for /var/lib/xend, since that directory wont exist on a system without xend. Jim
looks to see if qemu/kvm is present and connects to that. With virt-manager, and the command line virt-install you can specify the connection you want and that is what virt-install will use assuming the appropriate libvirt driver was loaded.
- Charles
-- To unsubscribe, e-mail: opensuse-virtual+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-virtual+owner@opensuse.org
On 21.01.14 at 16:37, Jim Fehlig <jfehlig@suse.com> wrote: Charles Arnold wrote:
On 1/20/2014 at 07:29 PM, in message <52DDDBA2.5000908@suse.com>, Jim Fehlig
<jfehlig@suse.com> wrote:
Hans Witvliet wrote:
Yes, i forgotten that xm/xend is depreceated. Heard that a couple of times at several fosdems from Ian, and when you mention "xm" at the xen-lists you are considered a relic from a distant past....
How ever: When you do a fresh instalation of the xen-stuff in 13.1, and you try to create a VM like one is used to do in previous versions, i still got a warning that i had to check because "xend was not running"
Charles, is there a check in {vm,virt}-install for xend running? I vaguely recall something along those lines, but suppose it was fixed long ago.
Yes. vm-install does check for a running xend. This is how it knows whether to use 'xm' to start VMs or if xend is not running it uses a libvirt connection to start VMs. The only time vm-install uses 'xl' for starting VMs is if xend is not running and it fails to connect to libvirt. Failure to connect could mean libvirtd was not running or some other error occurred when connecting to libvirtd.
For virt-install, it only uses libvirt for starting VMs. It will try to default to a xen connection if '/var/lib/xend' and '/proc/xen' exist otherwise it
It shouldn't look for /var/lib/xend, since that directory wont exist on a system without xend.
But the presence of the directory doesn't tell whether xend (or Xen itself) is running... Jan -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-virtual+owner@opensuse.org
On 1/21/2014 at 08:47 AM, in message <52DE9695.AD9 : 120 : 30462>, Jan Beulich wrote:
On 21.01.14 at 16:37, Jim Fehlig <jfehlig@suse.com> wrote: Charles Arnold wrote:
On 1/20/2014 at 07:29 PM, in message <52DDDBA2.5000908@suse.com>, Jim Fehlig
<jfehlig@suse.com> wrote:
Hans Witvliet wrote:
Yes, i forgotten that xm/xend is depreceated. Heard that a couple of times at several fosdems from Ian, and when you mention "xm" at the xen-lists you are considered a relic from a distant past....
How ever: When you do a fresh instalation of the xen-stuff in 13.1, and you try to create a VM like one is used to do in previous versions, i still got a warning that i had to check because "xend was not running"
Charles, is there a check in {vm,virt}-install for xend running? I vaguely recall something along those lines, but suppose it was fixed long ago.
Yes. vm-install does check for a running xend. This is how it knows whether to use 'xm' to start VMs or if xend is not running it uses a libvirt connection to start VMs. The only time vm-install uses 'xl' for starting VMs is if xend is not running and it fails to connect to libvirt. Failure to connect could mean libvirtd was not running or some other error occurred when connecting to libvirtd.
For virt-install, it only uses libvirt for starting VMs. It will try to default to a xen connection if '/var/lib/xend' and '/proc/xen' exist otherwise it
It shouldn't look for /var/lib/xend, since that directory wont exist on a system without xend.
But the presence of the directory doesn't tell whether xend (or Xen itself) is running...
Correct. It is wrong for 'xl' based system and it also doesn't actually tell us if xend is running. I'll need to submit a fix for this upstream. - Charles -- To unsubscribe, e-mail: opensuse-virtual+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-virtual+owner@opensuse.org
participants (3)
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Charles Arnold -
Jan Beulich -
Jim Fehlig